Lift the flaps, pull the tabs, turn the wheels it s motorized fun in a book! Children love large vehicles! Presented here in a sturdy book overflowing with both fun and solid information is one of children s favorite heavy machines a bulldozer. How much more fun children will find viewing a construction site, knowing how a bulldozer works from shovel to gearshift and dipstick to wheels. Using the interactive features in these books, children will gain an immediate understanding of the inner workings of this massive machine.